JPS63173105A - Self-traveling vehicle - Google Patents

Abstract

PURPOSE:To stop a self-traveling vehicle at a right position, by mounting a bar code reader on the self-traveling vehicle, and attaching a bar code label at a stop position. CONSTITUTION:The bar code label BL is attached on the projecting part of a position detecting plate 5, and a value is increased one by one in a traveling direction. A position detector 2 detects the projecting part of the plate 5, and the self-traveling vehicle 1 stops when the number of times of detection coincides with the number of the projecting parts of the plate 5 between a position where the vehicle has been stopped and the position desired to move. After stop, the BL is read by the bar code reader 3, and a difference between the value of the BL of the position desired to move and a read value of the BL is calculated. When the difference is positive, the vehicle is moved in the traveling direction, and when it is negative, it is moved to the position where projecting part of the plate 5 is detected by the number of times of the difference in a direction opposite to the traveling direction, and the BL is read again, and the above operation is repeated until the difference goes to zero. In such a way, it is possible to stop the vehicle at the right position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a self-propelled vehicle used for transporting materials, products, etc.

2. Description of the Related Art An example of a conventional positioning system for a self-propelled vehicle is shown in FIGS. 3 and 4. In FIG. 3, a position detection device 2 is attached to the main body 1. In this case, the convex part of the position detection plate 3 attached parallel to the running wheel 4 is detected by the position detection device 2, and the number of times it is detected is the position detection between the stopped position and the position to be moved. This groove formation stops when the number matches the number of convex portions on the plate 3. FIG. 4 is a detailed view of the position detection device 2 and position detection plate 4 of FIG. 3.

Problems to be Solved by the Invention In this positioning method, if the position detection device 2 malfunctions due to dust, noise, etc., it will not stop at the correct position.

Means for solving the problems and technical means of the present invention for solving the above problems are as follows:
A parcode league is installed inside a self-propelled vehicle, a barcode label is pasted on the vehicle's stopping position, and the stopping position is corrected based on the values from the barcode reader.

For production The effect of this technical means is as follows.

After moving, read the barcode label using the barcode reader on the main unit. From the value of the barcode label read,
It determines whether it has stopped at the correct position. If it has not stopped at the correct position, it calculates the information necessary to move to the correct position from the read barcode label value, moves again, and prints the barcode label. read. The above method is repeated until the read barcode label value indicates the correct stop position. As a result, even if the position detection device malfunctions,
This will allow you to stop it in the correct position.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, 1 is a self-propelled vehicle body, to which a position detection device 2 and a barcode reader 3 are attached. 4 is a running rail, and a movement detection plate 6 is attached parallel to the running rail 4.

FIG. 2 is a detailed view of the position detection plate 5 of FIG. 1. Second
In the figure, the barcode label is pasted on the convex portion of the position detection plate, and the value of the barcode label increases by 1 in the direction of travel. Position detection device 2
detects the protrusions on the position detection plate 5, and stops when the number of times of detection matches the number of protrusions on the position detection plate between the stopped position and the position to be moved. After stopping, read the barcode label and calculate the difference between the value of the barcode label at the position to be moved and the value of the barcode label read.

If the difference is 0, it means that the vehicle has stopped at the correct position. Further, if the difference is positive, it moves in the direction of movement, and if it is negative, it moves in the opposite direction to the direction of movement until it detects the convex portion of the position detection plate the number of times equal to the difference, and then reads the barcode label again. The above process is repeated until the difference becomes 0.

Effects of the Invention As described above, the present invention has a barcode reader installed inside the self-propelled vehicle and a barcode label affixed to the stop position of the self-propelled vehicle, so even if the position detection device malfunctions, it will not be located at the correct position. It can be stopped.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a self-propelled vehicle according to an embodiment of the present invention, FIG. 2 is a partial perspective view of a position detection plate, FIG. 3 is a perspective view of a conventional self-propelled vehicle, and FIG. 4 is a perspective view of a conventional self-propelled vehicle. It is a partial perspective view of the position detection device of a traveling vehicle, and a position detection board. 1...Main body, 2...Position detection device, 3
... Barcode reader, 4 ... Traveling rail, 6 ... Position detection plate.

Claims (1)

[Claims] A self-propelled vehicle that can travel on its own and has a position detection unit that can stop by detecting a position detection plate provided externally,
A self-propelled vehicle that is equipped with a barcode reader that can detect a barcode label affixed to the stop position of the self-propelled vehicle, and that can correct the stop position based on the value of the barcode label detected by the barcode reader.